PermaFelx® 50 is a family of thermoplastic elastomers designed in a range of durometers for maximum versatility. Performance-tested, PermaFlex delivers superior results compared to rubber, TPEs and other elastomers. As opposed to cured rubber, PermaFlex can be re-ground and re-molded many times. It processes with less waste and no sulfur pollution.

Polymer Name: Copolyester Elastomer (COPE)

Processing Methods: Injection Molding

End Uses: Air Ducts, Constant Velocity Joint Boots, Electrical Connectors, Footwear, Knobs, Luggage, SRS Airbag, SRS Seatbelt, Tubing

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Identification & Functionality

Chemical Family
Technologies

Features & Benefits

Characteristics
  • High temperature resistance
  • High tensile strength
  • Chemical resistant performance
  • And more...
Basic Properties

Temperature resistance; High tensile strength; Impact resistance; Wear and tear; Abrasion resistance; Resistance to weathering, oil and chemicals; High permeability resistance to fuels and oils; Flexural fatigue endurance; UV stability; Adhesion compatibility with paints, glues, plastics and metals; Creep and compression resistance; Excellent moisture vapor transmission rate; Dielectric; Good tactile and soft touch fee

Applications & Uses

Plastics & Elastomers Processing Methods
Application

PermaFlex®, and all its grades, is a thermoplastic elastomer, based on copolyester chemistry, also known as COPE or TPE-E. It eliminates the demarcation between rubbers and engineering plastics. It combines the strength and processing characteristics of engineering plastics with the performance of thermoset elastomers, a combination of the most desirable characteristics of rubbers and plastics. This combination provides benefits in processing and productivity for both molders and extruders. It also can be processed by blow molding or rotational techniques. ​ As a thermoplastic, PermaFlex does not involve the high cost of vulcanization to obtain optimal properties. This polyester-based material offers a consistent performance over its entire operating temperature range, since its properties vary minimally from high to low temperature extremes. PermaFlex polyester-ester technology extends the traditional temperature range of thermoplastic elastomers.

Properties

Flame Rating
Physical Form
Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Strength at Break (Type 1 Bar 73°F)7000
Dart Impact320in/lb +
Izod Impact Strength Notched 40°CNo Breakft-lb/inD 256
Tensile Elongation at Break (Type 1 Bar -40°C)900%
Tensile Elongation at Break (Type 1 Bar 73°F)900%
Tensile Strength at Break (Type 1 Bar -40°C)7000psi
Typical Properties
ValueUnitsTest Method / Conditions
Specific Gravity1.24g/ccmD-792
Chemical ResistanceExcellent
CompressionExcellent
Cut ResistanceExcellent
Density1.24g/cm3D 792
Hydrolytic StabilityExcellent
Mold Shrinkage Flow Direction0.005 - 0.006in(mm)D 955
Mold Shrinkage Type 1 Bar0.127 - 0.152in(mm)
Taber Abrasion Resistance(H-18, 1000 Gm, 1000 Cycles)Excellentmg/revolu.
Tear Resistance(Die C)Excellent20 in/min
Melt Flow Rate (240°C at 2.16 kg)65g/10 minutesD 1238
Thermal Properties
ValueUnitsTest Method / Conditions
Heat Aging-Air (168 hours at 150°C)No Change
Heat Aging-Brake Fluid (168 hours at 150°C)No Change
Heat Aging-Transmission Fluid (168 hours at 150°C)No Change
Duro Type D55D-2240
Melt Point410
Vicat Softening Temperature Rate A395°FD 648
Flammability
ValueUnitsTest Method / Conditions
UL 94 Flame Class (Specimen 1.6mm)HB (V-O grades available)UL 94

Regulatory & Compliance

Certifications & Compliance
Chemical Inventories

Packaging & Availability

Country Availability
Regional Availability
  • North America